From 816aa9a06ced95e801f7245f4402ef7a8120045f Mon Sep 17 00:00:00 2001
From: drindr <jerrychancn@outlook.com>
Date: Sun, 23 Mar 2025 00:01:01 +0800
Subject: [PATCH] clean the SAADC's register while dropping

---
 embassy-nrf/src/saadc.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/embassy-nrf/src/saadc.rs b/embassy-nrf/src/saadc.rs
index 70bda9f70..00e2b7402 100644
--- a/embassy-nrf/src/saadc.rs
+++ b/embassy-nrf/src/saadc.rs
@@ -465,6 +465,10 @@ impl<'d, const N: usize> Drop for Saadc<'d, N> {
     fn drop(&mut self) {
         let r = Self::regs();
         r.enable().write(|w| w.set_enable(false));
+        for i in 0..N {
+            r.ch(i).pselp().write(|w| w.set_pselp(InputChannel::NC));
+            r.ch(i).pseln().write(|w| w.set_pseln(InputChannel::NC));
+        }
     }
 }